Material astd method of psobitcxito the same



J. F. WHITE. WATER REPELLANT MATERIAL AND'METHOD 0F PRODUCING THE SAME.

APPLICATION FILED APR. 2a, 1926.

1,320,35 3.. Patented Oct :28, 1919 amuemtoz be produced, which will r earns PATENT oration Y v JOHN F. WHITE, 0F DETROIT, MIC WATER-REPELLENT MATERIAL AND MET'HQD OF PRODUCING Eitli GAIN,

2 SAME.

Specification of Letters Patent.

Patented net. as, rare.

Application filed April 28, 1916. Serial No. 94,225.

To all whom it may concern Be it known that I, JOHN F. WHITE, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Water-Repellent Material and Methods of Producing the Same, of which the followin is a specification, reference being had t erein to the accompanying drawing.

his invention relates to an improved method of producing a water-repellent cloth, having a' distinctive brownish cast or color. At the present time, and owing to the European conflict, as is now well known, it is quite impossible to secure the now recognized and most desirable'and accepted brownish dyes for use in connection with canvas employed for tentage, coats,

overalls, glo es, etc. 7

I have discovered that by the process presently to be described, when the materials specifically referred to or their equivalents are employed, a very excellent material can possess the desired brownish color, and in addition thereto will render the finished stock water repellent. It is also recognized that in hand and body covering, a water-repellent fabric is somewhat more desirable than a waterproofed fabric, the former being a ventilated fabric,

employed for ventilating purposes. To prowhich will be water-repellent, and which will also have the desired brownish cast or color, is one of the principal aims of the present invention.

In practising the method any desired or convenient apparatus can be employed, as for instance, the apparatus shown in my application Serial No. 831919, for applying the material to the fabric.

In the accompanying drawing there is shown diagrammatica 1y, an apparatus wherein A re resents a solution tank, B a coating roll, and C idlers, I) a scraper for removing the coating from the surface of the fabric, E the nipping rolls, and F the ironing machine.

In carrying out the methodI employ a compound consisting substantlally of the that is to say a fabric whereinthe spaces between the woven threads are following ingredients or their equivalents.

twenty base, sired, 'a certain percentage of White parafn, conveniently twenty per cent. is added. These ingredients or their equivalents are heated, thoroughly mixed and deposited in the receiving tank A. of the machine. In this condition the material is carried up by the spreading or coating roll B, and is spread over the under surface of the canvas strip 1, which is conveniently placed under tension in any desired manner. The material carried up by the-coating roll r0- tating in a direction the same as that in which the fabric moves, is applied to the surface of the fabric strip and is then passed over the scraping-on edge or knife I]. The fabric is thereby relieved of its coating of material, the only remaining part or portion of the substance is inthe nap of the fabric or in the weave of the cloth, all surface material being removed. In this condition the canvas strip is led to the baking or ironing machine F, the surface of which is held at a temperature of from live hundred to six hundred degrees Fahrenheit. The cloth is caused to pass rapidly in a curved path over the heated surface, and so under stron tension so that the surface of the cloth tIlroughout is maintained in close treating contact with the heated surface until the treating material has been thoroughly driven into the fiber of the thread of the cloth.

Itwill be noted that the step of heating is one wherein the fabric is not in itself pressed as would be the case were associated rolls used, and by such treatment the fiber of the fabric is retained in its substantially normal loose state and readily absorbs and takes up the treating material. It will, of course, be understood that the method of melting the ingredients, etc., may be somewhat varied and the invention is not limited to any specific formula. For instance, it is sometimes desirable to use a base, such as is used in waterproofing cloth and consists of about 80% petroleum residue, having a melting point of about 200 with 20% natural asphaltum which has a melting point of approximately 250, The usual practice employed is to deposit the pcstandard mixture as a troleum residuum into a large vat, heat the same to a temperature of about 350 F. and

at this time add the naturalasphaltum. The

by stirring the composition'from the time the natural asphaltum is added, a complete mixture of the mass is produced and the same is then allowed to cool to a temperature of about 250, when T preferably add a small amount of paraffin scale wax. The entire mass is agitated until the mixture becomes thoroughly uniform and at the same time the cloth is treated the material has a temperature of about 250 when this formula is followed.- This is only one formula which can be used in carrying out this invention and the same is, of course, not limited in any respect to the procedure above outlined. The resultant product is a canvas strip having the fiber of one of its faces thoroughly impregnated with a water-repellent substance, which is applied in a limited quantity so that the normal black appearance of the treating material is changed into a very pronounced light brown color, While the opposite sides of the fabric are substantially free from the colored treating substance.

7 Such a fabric has been found very desirable for the manufacture of cheap gloves and coats, as Well as for covering cloths.

The application of the scraper is not simply for the purpose of removing surplus material from a coated object, but. is

more nearly for the purpose of removing all of the material possible from the surface so as to eliminate -so-ca1led surface coating. Possibly other instruments may be employed for accomplishing this result and I- do not therefore wish to be limited to the employment of a scraper. Other means may also be employed for applying the material to thesurface, so long as the essentials of eliminating surface coating are adhered to.

In some instances it may be found deslrable to treat both sides of the fabric, in which instance the material is reversed and ,then' subjected to'the same treatment.

- Cheap gloves having a canton flannel inside surface can be made of the material treated as above stated, while preserving substantially the desired light color for the insidefluffy surface. A love made of this material has an improved wearing quality and is also water-repellent, as well as ventilated.

Should it be desired to produce a darkerbrown color, it 'is only necessary to reduce the percentage of the white paraffin used in the batch. j

The process may be characterized more nearly as a staining process or a process of applying a stain to a woven fabric, which stain has a water repellent characteristic.

1 am aware, of course, that paper sheets have been produced by applying an asphalt substance to a paper base and baking or cooking the same so as to cause part of the substance to enter the fiber, but the present heat is then brought up to about f00 and" invention is not designed to produce a water-proofing product.

I do not desire to be limited to the exact material referred to and it is tobe understood that other hydrocarbon and the equivalent thereof are comprehended and included in my claims. v

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

l. The art of producing a ventilated water repellent-Woven fabric material consisting in applying to the surface of a strip of the fabric a coating of a mixture of water repellent' hydro-carbon substance, removing the surplus coating from the surface, allowing to remain on the surface a suficient amount only of the substance to penetrate the adjacent threads of the fabric, and ap plying heat to the fabric to uniformly color 2. The art of producing a ventilated i water-repellent woven fabric consisting in applying to one surface only of the fabric water repellent hydro-carbon substance, removing the surplus coating from the face of the fabric, applying heat to the fabric to cause the remaining substance to enter the fiber of the threads of thefabric on one side only uniformly dyeing the surface, leaving a ventilating space betweenthe threads of the fabric, substantially as described.

3. As a new article of manufacture, a woven fabric having one face coated with a dyeing water repellent substance,.the body and treated face of the fabric absorbing substantiallyall of the treating substance and producing a uniform dyed finish on the treated face, the untreated face of the fabric being substantially free of the water repellent substance, substantially as described.

4. As a new article of manufacture, a woolen fabric havin one face coated with a dyeing water repel ent substance, the body and treated face of the fabric absorbing substantially all of the treating substance and producing a uniform dyed finish on the treated face, the untreated face of the fabric being substantially free of the water repellent substance, and only absorbing said substance when the same is applied to the treated face of the fabric in excess quantities thereby preventing a streaky finish on the treated surface.

5. As a new article of manufacture, a fabric having one side coated with'a colored water repellent substance, the bod of the fabric and the treated face thereof a sorbing substantially all of said treated substance naaaeee and leaving the treated face thereof with a uniform dyed finish, substantially as described.

6. As a new article of manufacture, a fabric having one side coated with a colored water repellent substance, the body of the fabric and the treated face thereof absorbing substantially all of said treated substance and leaving the treated face thereof with a uniform dyed finish, the untreated face being substantially free from the water repellent substance Which is applied to the treated face as uniformly as possible and only absorbing the substance in places when the same has been applied in excess quantities directly opposite the places, to which the substance has been applied when the same is applied thereto in excess quantities.

7. As a new article of manufacture, a fabric having one side thereof coated with a dyeing substance, the body and treated side of the fabric absorbing substantially all of said dyeing substance which produces a uniform dyed finish on thetreatedface, the untreated face of the fabric being substantially free of the dyeing substance.

8. As anew article of manufacture, a fabtreated face of the fabric being substantially free of the dyeing substance, said untreated surface absorbing the dyeing substance if an excess quantity should be applied to any portion of the treated face to prevent the treated face from having a non-uniform appearance.

9. The herein described process of treating a fabric which consists in applying to the surface of the fabric in substantially uniform quantities a coating having the characteristics of a dye, of applying heat to the fabric to cause the coating to be absorbed by the treated surface and the body of the fabric and leaving the other surface thereof substantially free of the treating substance.

In testimony whereof li hereunto affix my signature in the presence of two witnesses.

JOHN F. WHITE. Witnesses:

F. C. LOWNEY, JOHN C. MULLEN. 

